Electric protective device for safe and vault doors.



H. &H. R.-HUHN.

ELECTRIC PROTECTIVE DEVICE FOR SAFE AND VAULT DOORS.

'APPLIOATION FILED OUT. 22, 1912.

Patented 0011.28, 1913.

3 BHEETS-SHEBT 1.

COLUMBIA FLANOGRAFH C0" WASHINGTON. D. C.

H. & H. R. HUHN.

ELECTRIC PROTECTIVE DEVICE FOR SAFE AND VAULT DOORS.

' APPLICATION FILED oo'r. 22, 1912,

1,077,077, Patented Oct. 28, 1913.

manning I 54%; ml-1 unlu H mm IIIIIIH INVENTOR; e M/ q/ gITNESsgS I a? H. & H. R. HUHN.

ELECTRIC PROTECTIVE DEVICE FOR SAFE AND VAULT DOORS.

' APPLICATION FILED OCT. 22, 1912.

1,077,077, Patented Oct. 28, 1913.

3 SHEETS-SHEET 3.

WITNESSES Allahzey COLUMBIA PLANOCIRAPH C0,.WAsNINOTON. D. c. v

'nNrrnn STATES PATENT orricn HERMANN HUHN AND HENRY R. HUHN, 0F MACON, encircle, Assrenonsfiro THE YALE & TOWNE MANUFACTURING COMPANY, or swan/moan, coNNEcrrcU r.

ELECTRIC PROTECTIVE DEVICE FOR SAFE AND VAT IL T DOORS.

Patented0ct.28,19113.

Application filed October 22, 1912. Serial No. 727,196.

able others skilled in theart to which it.

appertains to make and use the same.

This invention relates to improvements in electric protective devices for safes, vaults or for other structures capable of employing time-lock mechanism,one object of the invention being to provide means controlled by mechanical time-lock mechanism which will operate to prevent the sounding of the alarm during a brief period after the time lock has been set, and yet permit the protected structure to be closed and locked temporarily during the closing minutes of the business day, said means being operable to set the alarm circuits automatically at the expiration of such limited period and when the door shall have been permanently locked with the mechanical time-mechanism set.

11 further object is to provide means operable by the mechanical time-lock mechanism for rendering the alarm circuits of electri cal protective devices inoperable to sound the alarm, after the time-lock mechanism has run down, and at the same time set such means to retain said alarm circuits inoperable for a limited period after the time lock mechanism has been again set.

\Vith these and other objects in view, the invention consists in certain novel features of construction and combinations of parts as hereinafter set forth and pointed out in the claims.

In the accompanying drawings; Figure 1 is a diagrammatical view illustrating the application of our improvements with the circuits normally open when the door is locked; Fig. 2 is an enlarged view showing a time-lock mechanism with the alarm circuit controlling means connected therewith; and Fig. 3 is a view showing the arrangement of the parts and circuits when the devices are rendered active to actuate the alarm by opening normally closed circuits, and Figs. 4 and 5 are detail views of thetiming controller shown in Fig. 3.

While our improvements are applicable to any structure to be protected, which is capable of the employment of a time-lock mechanism, we will, for convenience, describe and illustrate the application of said improvements to time locks as used on safe vault doors.

1 represents a portion of the door of a safe, vault, or other structure to be pro-' tected, and 2 the jamb at-one side of the door opening, the door being represented in Fig. 1 of the drawing as being closed.

A mechanical time-lock mechanism 4 of any approved construction is mounted in the door and suitably connected with the boltmechanism (not shown). The door may also be provided with a combination lock 5, and the spindle 6 of this look has secured thereto, a disk or tumbler 6 having a notch 7. A block 8 of insulating material is located on the casing ofthe combination lock and provided with a hole for the passage of a rod or pin 9 which also enters said casing and is provided within the latter with a small'roller 10 to run on the periphery of'the disk 6 and enter the notch 7therein,the roller being pressed into said notch by the action of a spring 11 secured to the block 8 and engaging a pin'12 on the rod or pin 9. An insulating head 13 is secured to the rod or pin 9 and has fixed thereto, a

c contact finger 14 adapted to cooperate with a contact plate 15, the parts thus constitutmg a circuit closer controlled by the operation of the combination lock 5.

The door 1 may also be provided with a circuit closer 16 which is operable by the opening and closing of the door. This circuit closer may comprise a casing 17 having mounted therein, a rod or pin 18 having a head 19 at one end to cooperate with a contact finger 20. The forward end of the rod or pin 18 is projected beyond the edge of the door by the action of a spring 21 which bears at one end against the casing and at the other end against a collar 22 on said rod or pin. When the door is closed the rod or pin 18 engages a lug 23 and is forced back so as to move the head 19 out of contact with the finger 20 and thus open the circuit in which the circuit closer is in eluded.

A conductor 24 is connected at one end with the casing 17 of circuit closer 16 (so as to be electrically connected with the rod or pin 18 of said circuit closer) and at its other end, said conductor is connected with one terminal of a battery 25, the other terminal of said battery being connected by a conductor 25 with a bindingpost 26 of an automatic switch device 27. A conductor 28 is connected with the contaet'finger 20 of circuit closer 16 and with a conductor 29, the latter being connected with the contact plate 15 of the circuit closer on the. combination lock The conductors 28--29 are connected by a conductor 30 with a contact plate 31 of a circuit controller 32, and another contact plate 33 of this controller is connected, by a conductor 84 with a binding post 35 of the switch device 27.

The switch device 27 comprises an electromagnet 35 having one terminal of its winding connected with the binding post 35 and having the other terminal of said winding electrically connected with the movable armature 36 of said electro-magnet. The armature 36 is provided with a lug 37 which is normally engaged by one arm of a pivoted trip or switch lever 38, the other arm of said lever being weighted as at 39. When the electro-magnet of the switch device is energized (as hereinafter explained), the trip lever will be released and its weighted arm will cause said lever to swing on its pivotal support and engage a contact finger 40 which is electrically connected with a binding post 41. The binding post 41 is connected by a conductor 42 with one terminal of an electric bell 43,the other terminal of the latter being connected, by a conductor 44 with one terminal of the battery 25.

From the construction and arrangement of parts and circuits as above described, it will be seen that if the combination lock be turned so as to bring the notch 7 in alinement with the roller 10, the circuit will be closed at 1415, or if the door 1 be opened, the circuit of switch magnet 35 will be closedat 1920, and in either case (assuming the circuit to be closed at the controller 82 as shown in Fig. l), the switch arm 38 will be released and permitted to engage the contact 40, thus closing the bell circuit and maintaining it closed so as to cause the continuous ringing of the bell until the circuit thereof shall have been opened by the manual resetting of the switch lever 38.

The important feature of our improvements resides in the employment of a con troller such as shown at 32 associated with and controlled by the time lock mechanism 4. so as to control the alarm circuits in such manner that said circuits shall be rendered inactive or incapable of causing the operation of the alarm, for a predetermined interval of time after the time lock mechanism shall have been set, thus permitting the user to open and close the safe or vault door during the closing minutes of the day (after the time-lock mechanism has been set without soundin the alarm. The construction and operation of the controller whereby these results are accomplished, will now be explained:

The controller 32 is inclosed by a casing 45 which may be conveniently secured to the casing of the time-lock mechanism. A clock mechanism or timer 46 is disposed within the casing 45, and the spindle 47 of this timer is provided with a pinion 48, which meshes with a rack bar 49 on a block 50. This block is provided with a guide bar 51, to insure accurate operation of the same and to maintain the rack bar 51 in proper mesh with the pinion 46. Contact fingers 5252 are carried by the block 50 and electrically separated therefrom by insulating material These. contact fingers are adapted to move over the face of an insulating block 54 and to electrically connect the contact plates til-33 secured to said insulating block.

A rod is secured to the block or slide 50 and entering the casing of the time-mechanism 4, is connected with the longitudinallymovable bar 56 of said mechanism. A spring 57 encircles the rod 55 and bears at its respective ends against the block or slide 50 and the casing 45.

Under normal conditions, when the safe or vault door is closed and locked under the control of the time-mechanism, the controller mechanism will be in the positions shown in Fig. 1 with the contact fingers 52 in engagement with the contact plates 3133, so that should the combination lock 5 be tampered with or the door opened, the circuit closer on the combination lock or the circuit closer 16 would be closed and the alarm sounded. hen the time-lock mechanism shall have run down at the eX- pirat-ion of the time for which it has been set, the bar 56 will be moved longitudinally (by engagement of pins 85 on the dials with pins 86 on the bar 56 of the time-lock mechanism) for releasing the bolt mechanism as is well known. Such movement of the bar 56 will be transmitted through the rod 55 to the block or slide 50 and the contact fingers 52 will be moved out of engagement with the contact plates 31-33 and the alarm circuit-s will thus be opened at the controller. The door may now be unlocked and opened withouteausing the sounding of the alarm. When the block or slide 50 was moved by the operation of bar 56 of the time-lock mechanism, the codperation of the rack bar 49 with the pinion 48' caused the winding of the clock mechanism or timer '46Vand it also caused the compression of the spring. It will thus be .seen that when the timelock mechanism comes to rest, the alarm circuits will be opened at the controller and the latter will be automaticallywound and set, ready to be released when the time-lock mechanism shall have again been set. It will be understood that the parts of the controllerwill be retained, by the time-lock mechanism, in the positions just described until said mechanism :shall have been again set. I

WVhen, near the close of the business day, the clerk sets the time-lock mechanism, the movement of the pins of the dials from the pins of the bar 56, will release the latter and the expansive pressure of the spring 57 will move the block or slide 50. The speed of such movement of the block 50 is controlled by the operation of the timer 46, (with pinion 48 of which, the rack 49 on the block 50, is in mesh), and said timer will be so regulated as to cause a predetermined interval (say fifteen minutes) to elapse after the time-lock mechanism has beenset and the contact fingers 52 reach the contact plates 3133 to close the alarm circuits at the controller. During this predetermined period of time, the clerk will be enabled to operate the safe or vault door after having set the time mechanism, and without causing the sounding of the alarm.

It will be observed that our improvements provide means operated by the mech anism of a time-lock for controlling the alarm circuits, and that said means are au tomatically set as well as controlled by the time-lock mechanism, thus avoiding the necessity of depending upon the memory of a clerk to set or wind the same.

In the above description we have assumed, and in Figs. 1 and 2 of the drawing, we have shown an arrangement whereby the alarm circuits are normally open when the door is closed, and adapted to be closed by the circuit closers1415 or 16 when the door is unlocked or opened. If desired, the reverse of this arrangement may be employed, so that the alarm circuits will be normally closed when the door is closed and opened to cause the operation of an alarm, when the door is unlocked or opened. Such an arrangement is shown in Fig. 3 of the drawing. To adapt the circuit closer 16 for this normally close circuit arrangement, the contact finger 20 is so disposed as to be engagedby the head 19 when the door is closed, and the lug 23 is provided with an insulating face piece 58 to prevent the circuit from becoming grounded. The circuit closer 14. 15is. normally closed when the combination lock5' is set in locked position Joy so arr'angingthe notched disk 6 that the troller 32.

roller 10 will enter'the notch 7 of said disk and thus permit electrical contact of the 3133; two contact plates 59-60 located inproXimity to the contact plates 31-33 respectively and staggered relatively thereto. The contact fingers 52 of the controller 32 shown in Fig. 3 are bifurcated, so that as said fingerspass over the staggered contact plates 3l59 and 3350, the circuit which includes these contact plates willnot be opened. 7

A conductor 61 connects the contact-plate 31 of. the controller 32 with the contact finger 20 of the circuit closer'16. The casing of this circuit closer is connected, by a conductor 62 with the contact finger 14 on the combination lock 5. The contact plate 15 isconnected, by a conductor 63 wit-h a switch 64, the latter being adapted to cooperate with one or another of two contact points 65, for including in circuit, one or another of two batteries 6667. teries are arranged in parallel and the circuit of one of them is always open.v The batteries are connected, by means of a conductor 68, with one terminal of the coil of an electro-magnet 69, the other terminal of this coil being connected, by a conductor 70, with the contact plate 33 of the timing con- The conductor is also connected, by a conductor 71, with contact plate 60, and the contact plate 59 of the controller is connected, by a conductor 72, with the conductor 63.

The magnet 69 actuat'es an armature lever 7 3 and the latter controls the motor mechanism 74 of a mechanical gong 75. The armature lever 73 also controls a normally open circuit-closer 76, included in a circuit 777 8 with an automatic switch device 7 9 (the same in construction as the switch 27) and a battery 80, and said switch controls the circuit 818283 of an electric rheotome bell 84.

With the construction and arrangement.

of circuits and devices shown in Fig. 3, when the door of the structure is closed the fingers 52 of the timing controller will rest on the contact plates 31-33 and the circuit including said contact plates will be closed at l415*and 1920. A closed circuit may now be traced from battery 66, by conductor 63 to contact 15, to contact 14, by conductor 62 to circuit closer 16; then by conductor 61 to contact plate 31 of controller 32, to contact plate 33, then by conductor 70 to coil of magnet 69 and from said coil, by conductor 68 to battery 66. The magnet- 69 will be thus energized and the mechanism of themechanical gong held at rest. Should the circuit be opened at 1415 or 1920, the

These bat-' magnet 69 would be deenergized, releasing the armature lever 7 3, and the mechanism of the mechanical gong 75 would be set free. At the same time, the circuit Ti -78 would be closed at 7 6 and the automatic switch 7 9 would be actuated to close the circuit of the electric alarm, 84. When the mechanical time lock on the door has run down, the fingers of the controller 32 will be moved slowly (as hereinbefore described) from the contact plates 3l33 to the contact plates 59-60, thus establishing a circuit shunting both circuit closers 14l15 and l6,-this shunt circuit includin'g conductors 71 and 72, contact plates 5960 and contact fingers 52. The door can now be unlocked or opened without causing the alarm devices to be actuated. The above conditions will be maintained, not only while the mechanical time lock is at rest, but also for a predetermined length of time after the time lock mechanism has been set and started, such predetermined period being controlled by the slow travel. of the fingers 52 of the controller from the contact plates 3132. It is apparent that when the fingers 52. reach the contact plates 3l33, the shunt circuit 71-27 will be opened and the normal conditions, with the circuit closers 14l15 and 16 in the alarm controlling circuits, will be established.

Having fully described our invention what we claim as new and desire to secure by Letters-Patent, is

1. The combination with a time-lock mechanism and electrically controlled protective devices, of a timing controller for the circuits of said protective devices connected with and controlled by the time lock mechanism, whereby the operation of the protective devices may be rendered inoperative for a predetermined period after the time-lockmechanism has been set.

2. The combination with a door, time-lock mechanism, an alarm device, electric circuits for the alarm device, and circuit controllers associated with the door, of a timing controller for said circuits connected with and controlled by the time-lock mechanism, whereby the operation of the protective devices may be rendered inoperative for a predetermined period atter the timelock-mechanism has been set.

3. The combination with a closure and a time-lock mechanism therefor, of electrically controlled alarm devices associated with the closure, and means controlled by the timelocl; mechanism for rendering the alarm mechanism. inoperative for a brief period after the time-lock mechanism has been set.

The combination with a closure and a time-lock mechanism therefor, of an alarm device, means associated with the closure for controlling the operation of said alarm clevice, a controller for the alarm controlling 1 means, a connection between said controller and the time-lock mechanism for actuating the controller to render the alarm controlling means inoperative when the time-lock ,mechanism runs down, and means for retarding the resetting of the controller after 1 the time-lock mechanism has'been reset.

5. The combination with a closure and a t1me-lock mechanism therefor, of electrical protective devices associated with the closure,

and a timing controller interposed in the clrcuits of said protective devices and mechanically connectedwit h a movable part of the time lock mechanism, whereby the operation of the protective devices may be rendered inoperative for a predetermined period after the timedock-mechanism has been set.

6. The combination with a closure and a -timelock mechanism therefor, of electrical protective devices associated with said closure, a timing controller interposed in the circuits of the protective devices, a mechanical connection between the time-lock mechanism and said controller for operating the latter to render the alarm devices inoperative, and a spring for actuating the controller in the reverse direction.

7. The combination with a closure, and a time-lock mechanism therefor, of electrically controlled alarm devices associated with the closure, a timing controller interposed in the circuits of the protective devices and mechanically connected with the longitudinally movable bar of the time-lock mechanism, whereby said controller will be actuated by said bar to render the protective devices inoperative when the time-lock mechanism runs down and hold the same in such position while said time-lock mechanism is at rest, and means for actuating the controller in the reverse direction. whereby the restoring off the protective devices to operative condition will be retarded after the time-lock mechanism has been reset.

8. The combination with a closure and atime-locl: mechanism therefor, of electrically controlled protective devices associated with the closure, a circuit-controlling device interposed in the circuits of the protective devices, a timing device, gearing between said timing device and the movable member of said circuit-controlling device, a mechanical connection between the movable member of said circuit controlling device and a movable part of the time-lock mechanism for moving said movable member in one direction when the time-lock mechanism runs down, and a spring for mo 'ing the movable member of the protective device for temporarily rendering said circuit inoperative to actuate the protective device, and means connecting the time-lock mechanism with said controller, whereby the latter will be controlled by the normal operation of said time-lock mechanism.

10. The combination of an electrical protective device, a time-lock mechanism, a cir cuitrcontrolling device for the protective device, a timing mechanism for said circuit controlling device, a spring for actuating said circuit controlling device in one direction, and a connection between said circuitcontrolling device and the time lock mechanism for controlling the operation of said circuit controlling device.

In testimony whereof, we have signed this specification in the presence of tWo subscribing Witnesses.

HERMANN HUHN. HENRY R. HUI-IN.

Witnesses:

T. L. LINGo, W. R. ROGERS, Jr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

